I know that spray polyurethane foam is difficult to remove and separate from other building materials. Also, dust particules containing toxins can be released when applying or removing it. What is a greener and healthier alternative?
I know for insulation purposes there are good alternatives such as cotton/denim insulation, cellulose insulation or mineral wool, but I'm actually looking for a material that can be sprayed or glued on and is fairly strong when hardened. Any insulation value is a bonus, but not strictly required. Does something like this exist?